Getting error on release mode

Hello,

I derived a class from QGLWidget, after i add this widget in my application it works well in debug mode if i change to release mode i'm getting this error ;
http://img202.imageshack.us/img202/9960/59785133.th.png
Click for see Image

Do you have any idea about that ?

Ps Qt Version 4.7 i have booth debug and release libraries ..

Do you use some assertions? If yes then probably you are using it wrong!
I don't see another explanation since erros says that QApplication was not created.
How you main function looks like?

Code:

---

int main(int argc, char *argv[])
{
	QApplication a(argc, argv);
	a.setStyle(new QCleanlooksStyle);
	QPixmap pix(":/Images/Splash.png");
	SplashScreen Splash(pix,305, 22);
	Splash.setMask(pix.mask());
	Splash.setWindowOpacity(0);
	Splash.show();
	for (int i=0; i<100; ++i ) {
		Sleep(10);
		Splash.setWindowOpacity(i*0.01);
		Splash.setMessage(QString("Test : ").append(QString().setNum(i+1)));
	}
	Initialization(&Splash);
 
[B]	MainWindow w;
[/B]	w.show();
	Splash.finish(&w);
 
	return a.exec();
}
 
 MainWindow, on this step ;
 
MainWindow::MainWindow(QWidget *parent) :
    QMainWindow(parent),
    ui(new Ui::MainWindow)
{
    [B]ui->setupUi(this);[/B]
    .
    .
    .
}
 
 ui_mainwindow.h :
 
        glArea = new GLWidget(frmOperation);

---

i'm getting error on this step : glArea = new GLWidget(frmOperation);

but it works well in debug mode ...

Show the code of GLWidget constructor. Have you tried to make a clean release build (make clean, qmake, make release) ?

GLWidget::GLWidget (QWidget *parent) : QGLWidget(parent) {
}

There is no code in ctor. I tried clean and rebuikd again and again still getting same error :s

Are you including some additional libraries in release mode ? Can we see .pro file ?

I'm using Visual Studio , i double checked compile, linker options it is look like fine. I made simple application just using my GLWidget it works on release and debug, i'm gonna checking project settings again ..

---

Added after 14 minutes:

in QWidget.cpp :

if (!qApp) {
qFatal("QWidget: Must construct a QApplication before a QPaintDevice");
return;
}

static QCoreApplication *instance() { return self; }

qApp (self) is gets NULL in release mode but it gets valid value in debug mode

guys, i stuck with this, is there any idea ?

Quote:

---

I made simple application just using my GLWidget it works on release and debug, i'm gonna checking project settings again ..

---

You got it working already, right ?

Yay it works atm. Thanks for help ...